Valve.



W. P. BOVARD.

VAIVE.

APPLICATION FILED MAY 31. I917. 1,281,496. Patented M15, 1918.

Is I

3 Hal 31mm mum/w R Bamno STATES PATENT OFFICE.

WILLIAM r. :e'ovnnn, or ANSFIELD, om nssi'qnon r0 THE OHIO isnnss COMPANY. Q MANSFIELD, OHIO, A CORPORATION on NEW JERSEY.

VALVE.

Specification of Letters Patent.

Patented Oct. 15, 1918.

Application filed Kay 31, 131?. Seriellio. 171,826.

To all whom inmay concern: 7

Be it known that 1, WILLIAM P. Bovsnn, a. citizen of. the United States, nesid ng at Man fiel in he ounty of Richjl nd. and State; of. Ohio. have invented certain new and useful Ignpnovements in Vnlves of which the following is a specification.

My invention relates to that elassof devices lg own a valves suitable for use on either wzater or; steam lines and finds. most general use. in connection. with hot water h a-n he ti g ys em Iqhasforits. obgect a device which is-simple and easy of con truction; aileviceavhich is proofi against leakage. erouml the valve st e er o h ch e p ck s as fol; nomoved fromcontact withthe steam or t rn r iifini h s rr un ing aivwater as. possible, thereby maintaining the pe 'ngat-a morenearlyconstant tom egat-er qbre s n be fit-sot this de i e l. pointed out, i and disciosed as the. lnz ventlon ls n ore fully. described and; explained. as to constructio ran d operation.

e ieWwefigup e h w n ang type, ofival ve my invention is adapted o w eish .sy vn o v v q all s .W IL.

it will benhw've t o e n d. h valve. which. afieot the .{oint packing around he Stem. to prevent eakage are so constructerlgand combined as to=practically constit utea singleworking unit and the construqtionissuchthet theflow ofsteam, was! br o hen u d whio he a ve me; be ith, is minimizeds or retarded mm fl wing intoet he chamber in which the spring is lqc hy a. reasonably close fit henweenthe valvestem and its guide. This fact; to the: Will -the extreme location. of the. acfiing from the sounze of'inlet of. the flui laces thempacking. under the most favors 1 conditions for constant working temperature and thereby relieving the packng i. xtr me. hich emp r ure or. ri tion. where the. va V is used with steam.

As the cgnstrg etion of m valve is simple and the parts are practically zsymmetricel;

{hat is, ,bai ngsof a. circularv cross section, I .50

1a.ve..shown only one figure embodying my improvements which is'a. longitudinal, sectional View, with some of theinterior parts infull and thisisshown iniFignlr'e 1. Fig. 2 is apwss ncnonfl Wnw on the lineHof Fig. -1. Fig; 3 is a perspective view of the U-shaped washer which is essential in order to properly assemble the important working parts of my invention.

A. description of my invention is as follows-Numeral 1 indicates the valve body of the usual design and shape having an inlet and outlet opening, 2 and 3 respectively, which are provided with attaching means; 4 indicates a bonnet casting attached to the body Lby a threaded and shouldered joint to prevent leakage. The passage way from openings 2 and 3 through the valve body is closed oropened through the medium of: the valve 5 which is provided with avcomposition disk "'6, although other forms of disks ofother material mny be used. The disk 6' is adapted to press against a raised portion-7 called the valveseat for closing ofl" the flow of fluid through the valve body. Theva-lve disk'is held in place through the medium; ofthe Washer 8 the nut 9 and the threaded stem 10.- The disk 6 is provided with a, projection 11 which engages with a threaded extension 12 and the end of the projection 11 is penned over so as to prevent the parts 5 and 12 from being disconnected but permits the two to revolve with respect to each other if'desired, or the end of the Stud 11 can be peened over so that there is no relative movement of the disk 6 with respect to the threaded extension 12. The outside of the threaded extension 12 is provided' with a verycoarse thread 13 which engages with the corresponding coarse thread 14 on the bonnet. so that as the threaded extension 12 is revolved it is caused to rise or fall with respect to the bonnet andtherehy causing the composition disk 6 to rise and fall, closingor opening the passage way through the valve. The up er end of the valve extension 12 is provided with an opening of such contour as to receive the valve stem 15 and the two arethreaded joint between the parts 12 and 4, thereby producing a water seal, and which has a lower temperature than that of the fluid passing through the valve when such fluid is steam.

The upper end of the bonnet 4 is provided with a spring case cap 17 which is threadedly attached thereto. The recess 18 produced by the parts 4 and 17 contains the spring 19 and the retaining U shaped washer 20 also shown in Fig. 3.

The stem 15 is provided with an annular groove 21 adapted to receive the U shaped washer 20 the washer being slidable sidewise on the stem. Below the groove 21 is a flange 22 which makes a reasonably close fit in an aperture 23; this arrangement not only acts as a guide for the stem 15 but the close fit of the part tends to reduce and materially minimize the pressure and flow of fluid from the chamber 16 into the chamber 18. The upper face of the cap 17 is provided with a circular ridge 24: although several of these ridges placed concentrically may be used. An outwardly projecting flange 25 forms an integral part of the stem 15 at its upper end and the lower face of this flange is provided with circular raised ridges 26 which may be one or more in number and concentric with respect to each other. The flange 25 is provided with a downwardly extending flange 27, the purpose of which is largely one of appearance. In the cavity 28 thus formed is a composition packing disk 29 which is seated between the packing ridges 24 and 26 and the three parts 24. 26 and 29 are firmly pressed into contact through the action of the spring 19. It will be observed and read ily understood. that with sufficient spring pressure, leakage from the inside of the valve to the outside will be entirely eliminated by the construction which I have shown and described, and that the packing 29 is removed from the main source of temperature as far as it is possible to do so. and yet produce a compact valve. It will also be observed that the pressure of the fluid upon the packing disk and joint are materially reduced through the relation of the parts 22 and 23 and the relation of the parts 12 and 1.

The upper face of the flange 25 is provided with two or more projections 30 which are seated in depression 31 in the handle 32 which is usually constructed of wood, and the handle 30 is held in place on the stem 15 by means of the screw 33. The simplicity of the assembly of the parts 15, 17, 19, 20 and 29, which might be stated to constitute a single working unit for the reason that by unscrewing the cap 17 all of these parts are disassembled as one unit, will be appreciated when it is considered that all that is necessary is to place the disk 29 on the stem 15, insert the stem 15 through the cap 17 place the spring 19 in position and then to place the washer 20 in the groove 21, and these parts as a unit are then placed in position upon the bonnet 4. and when screwed tightly into place the valve is thoroughly and well protected against leakage.

The assembled valve as I propose to construct it, constitutes a device which by turn ing the handle 32, causes the valve 5 to rise or fall according to the direction the handle is turned, thereby opening or closing the passage between the openings 2 and 3, and the spring 19 is constantly causing a tight fitting between the parts 24, 26 and 29, thereby constantly and automatically maintaining a nonleakage condition between the interior of the valve and the exterior around the stem 15.

Other modifications may be made by those skilled in the art from the construction which I have described and disclosed herein without departing from the spirit and scope of my invention, and therefore I do not care to be limited to the exact construction shown.

What I claim as new is:

1. A valve comprising in combination with a casing, 11 valve seat therein, a valve for the seat, a cap on the casing. a stem for operating the valve and having a flange thereon and packing means engaged by the cap and flange, of yielding means interior of the case for maintaining the cap. packing and flange in sealed relation and means slidable sidewise on the stem to maintain and support the yielding means.

2. A valve comprising a casing. a valve seat formed therein, a valve for the seat. a stem, a cap. a flange on the stem but exterior of the cap, a packing member interposed between the cap and flange. means for yieldingly and automatically retaining said packing member in frictional contact with the cap and flange. and a U-shape washer mounted on the stem for supporting one end of said yielding and automatic means.

3. In a valve, a casing. a cap removably secured thereto provided with an annular ridge formed on the exterior surface of the end thereof. a stem rotatably mounted. a flange on the stem having an annular ridge formed on the lower face thereof, and provided with a depending sleeve. a packing member interposed between the cap and flange, and surrounded by the sleeve, a. spring. and a U shape washer removably mounted on the stem adapted to provide a means for retaining the packing member, cap and spring in a predetermined relation with the flange.

4. In a valve, a casing having a guide formed therein. a stem mounted in the guide and in close relation thereto. a flange proyided on the stem. a cap secured to the easmg. a packing member interposed between said cap and flange, a spring, and a U shape washer removably mounted in a groove on the stem adapted, when in position, to combine the stem, packing member, cap and spring into a single working unit, substantially as described.

5. The combination with a valve body, valve seat and valve, of a cap, a stem having a non-rotatable but longitudinally sliding engagement With the valve and having also a flange formed integral with the stem exterior of the cap, a packing disk between the cap and flange, a sprin within the cap and means within the cap %or retaining the cap, stem, packing and spring in an assembled state, permitting these parts to be taken ofl' and reapplied as a single unit.

6. The combination with a valve body, valve seat and valve, of a cap, a stem provided with an exterior flange passing through the cap, a packing disk interposed between the cap and flange and a spring within the cap for yieldingly pressing the packing between the cap and flange, and means slidably mounted to move sidewise on the stem to support and maintain the spring.

7. The combination with a valve body, valve seat and valve, of a cap, a stem provided with an exterior flange, a packing disk interposed between the cap and flange, a resilient member within the cap for pressing the packing between the cap and the flange, and means positioned interior of the valve for locking the ca and stem in yielding engagement with t e packing.

8. An article of manufacture com rising in combination a recessed body mem r, an apertured cap positioned on the body member, a stem passing through the recess and apertured cap, a flange on the stem exterior of the body member, a packing member positioned between the flange and the cap, a resilient member and means engaging the stem within the recess for maintaining all parts together as a unit.

In testimony whereof I aflix my signature.

WILLIAM P. BOVABD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Iatentn,

Washington, D. G." 

